Pipe calking tool



April 6, 1965 J. J. zANE PIPE CALKING TOOL Filed sept. 11, 1961 Elli? III IOHN l. ZANE INVENTOR KENDRICK, SCHRAMM & sToLZY ATTORNEYS UnitedStates Patent O 3,176,495 PIPE CALKHJG TOOL John J. Zane, 424 vJia Aimer, Palos Verdes Estates, Calif. Filed Sept. 1l, 196i, Ser. No. 137,427 I Claim. (Cl. 72-402) This invention relates to the art `of laying pipe, andV more particularly to a device for use in driving a call/ring compound into the space between the mutually adjacent telescoped ends of two lengths of pipe.

Although the device of the present invention may have many other applications and is not to be limited to any particular one disclosed herein, it has been found especially useful in calking soil pipe with oakum and lead. In the past, the manual method of calking soil pipe has been found to be relatively inefficient. Although some tools have been devised for this purpose, these tools either have likewise been rather inefficient or require a considerable number of complicated component parts.

In accordance with the device of the present invention, the above described and other disadvantages of the prior art are overcome by providing support means, anvil means including an arcuately shaped ange to tit in a space between the bell and spigot ends of two adjacent sections of pipe, and a guide assembly connected between the support means and the anvil means in a position movable toward and away from the support means. In such a case, the anvil means are employed to drive a caiking compound into the space between the bell and spigot ends of the pipe.

In accordance with an outstanding feature of the present invention, the guide assembly includes a pair of pins. Thus, the pins guide movement of the anvil means accurately over the entire length of the travel thereof relative to the support means into the joint between the sections of pipe.

In accordance with another outstanding feature of the present invention, the support means includes a pair of pivoted generally semi-circular arms to tit around the pipe, and spring means to hold the arms together around the pipe. Thus, the spring means not only facilitates rapid assembly of the tool of the present invention around soil pipe, but it also holds it there.

From the foregoing, it will be appreciated that the tool of the present invention may be easily and quickly mounted around a length of soil pipe and that the anvil means may be driven into the pipe joint with considerable accuracy and speed. Still further, the device of the present invention requires relatively few uncomplicated component parts.

The above described and other advantages ofthe present invention will be better understood from the following description when considered in connection with the accompanying drawings.

In the drawings, which are to be regarded as merely illustrative:

FIG. 1 is a front elevational View of a tool made in accordance with the present invention; and

FIGS. 2 and 3 are sectional views of the tool taken on the lines 2 2 and 3 3 respectively shown in FIG. 1.

The calking vtool of the present invention is illustrated generally at in FIGS. 1 and 2 of the drawing. It is employed for the purpose of stuling oakum at Il in the space between mutually adjacent ends 13 and 14 of cylindrical soil pipe as shown in FIG. 2. For this purpose, six anvils 15 are provided as shown in FIG. l, slidable axially toward and away from the end 13 of the pipe on pins 16 iXed to arms 17 that are rotatable to a position surrounding the end of the pipe 14 about a pin I8.

Anvils 15, as shown in FIG. 2, are provided with arcuate flanges 19 to extend into the space between pipe ends 13 and 14. The length of flanges 19 may be ditferent and 3,176,495 smeared Apr. e, 1965 4ICC longer than shown to calk oakum instead of lead, if desired.

One arm 17 is provided with ears 21 which are disposed on each side .of a member 22 that is integral with the other arm I7. One handle 23 is connected to ears 2l and another handle 24 is connected to member 22. Handles 23 and 24 are biased apart by a leaf spring 25.

Note will be taken that arms 17 are provided with flanges 12 to t behind a bead 12' on the bell end 13 of the soil pipe to hold the same thereon.

Calking may be performed simply by positioning the tool Iii in the manner illustrated in FIG. 2 and impacting or hitting the righthand surfaces of anvils 15 as viewed in FIG. 2 with a hammer. After the material between pipe ends 13 and 14 is driven inside thereof, tool Ill may be turned a few degrees and the same procedure followed to complete the calking to cover bare spots between the initial positions of anvils 15.

Anvils 15 are held outwardly from arms 17 by means of springs 2tlshown in FIG. 2, whereby they will spring out of the space between pipe ends 13 and 14 after they are hit.

Note will be taken that the arcuate length and the number of anvils I5 is `such that the location of tool Ill in the position shown in FIG. 2 around ends of pipe at I3 and 14 requires movement of the tool only a few degrees therefrom. That is, oakum or lead or other compressible call'- ing material may be calked in the space between ends of pipe I3 and I4 by impacting all of anvils 15 once in the position shown in FIG. l and once in a position a few degrees therefrom about the pipe.

From the foregoing, it ill be appreciated that springs 2@ may be any kind of springs, including leaf springs.

till further, as stated previously, the length of flanges 19 may of course be extended to call; oakum between the ends of soil pipe as well as the length shown to calk lead therebetween. Flanges 19 may also have an intermediate length longer than that illustrated to calk both oakum and lead. In addition, the hinge at pin I8 may be incorporated on the side of the arm 17 opposite from that shown in FIG. l and the handles 23 and 24 may be retractable, if desired.

In accordance with the foregoing, pins I6 guide movement of anvils 15 accurately over the entire length of their travel in the direction of the axis of the pipe ends 13 and 14 when they are impacted to drive a calking compound into the space therebetween. The leaf spring Z5 facilitates the rapid application of the tool 1li to soil pipe in that handles 23 and 24 may be gripped with thev hand and squeezed together easily and quickly. Still further, when tool 10 is located around pipe, leaf spring 25 likewise biases arms I7 therearound to hold the tool Il) in a substantially iiXed position therearound. Hence, the tool of the present invention may be easily and quickly mounted around a length of soil pipe and the anvils 15 impacted to drive a calking compound into a pipe joint with considerable accuracy and speed. Although the tool of the present invention provides these advantages, it will be noted that the same requires relatively few uncomplicated component parts.

Although only one specific embodiment of the invention has been illustrated and described, many changes and modifications thereof will of course suggest themselves to those skilled in the art. The present invention is therefore not to be limited to the details of this disclosure, the true scope thereof being defined only in the appended claim.

What is claimed is:

In apparatus for calking material in the space between mutually adjacent bell and spigot ends respectively of two sections of pipe in which the bell end is provided withra including a pair ofV pivoted generally semi-circular arms to t around the pipe; a ange on each of said arms to lie behind said pipe bell end bead; anvil means including a plurality of anvils each including an arcuately shaped ange to fit in the space between the bell and spigot ends of said sections of pipe, each of said anvils being equally spaced around the pipe; a guide assembly including a pair of pins connected between said support and anvil means to support said anvil means in a position movable toward and away from said support means; spring means between said support and anvil means to urge said anvil means away from said support means in the direction of the axis of the pipe; a handle fixed to each of said arms in a position such that movement thereof toward each other moves said arms apart; and a leaf spring Xed to one of said handles in a position bearing against the other of said handles to bias said handles apart.

References Cited by the Examiner UNiTED STATES PATENTS 473,008 4/ 92 Lynch 78--47 947,837 2/ 10 Miller 78-47 2,003,629 6/35 Coffey 82-4 2,820,379 l/ 58 Napierskie 78-47 1() 3,026,750 3/62 Prins et al 78-47 CHARLES W. LANHAM, Primary Examiner.Y

RICHARD H, EANES,`WILLIAM I. STEPHENSON,

Examiners. 

